This book is so radioactive that only an author with the science reporting credentials of Nicholas Wade should have written it, and any reviewer may fear to touch it. In fact, it was an already radioactive reviewer, Charles Murray (Herrnstein, R. J., & Murray, C., The Bell Curve: Intelligence and Class Structure in American Life, ; Murray, C., Coming Apart: The State of White America 1960-2010, ) who brought the book to my attention. Wade, past deputy editor of Nature and writer for Science and The New York Times, has written two previous books on human evolution.